High-capacity cylindrical roller bearings
SKF high-capacity cylindrical roller bearings (fig. 1) have the high load carrying capacity of full complement bearings and the high speed capability of bearings with a cage. They are designed for applications such as industrial gearboxes, gearboxes in wind turbines and mining equipment.
The superior performance of SKF high-capacity cylindrical roller bearings is mainly a result of the cage design. The window-type metal cage is designed so that its cage bars are displaced relative to the roller pitch diameter. This enables the rollers to be placed closer to each other, creating room for additional rollers (fig. 2, fig. 3, fig. 4, fig. 5). Depending on the bearing series, the cage can be either inner or outer ring centred. These cages are beneficial if high speeds, rapid accelerations or shock loads occur.
The rings and rollers in SKF high-capacity cylindrical roller bearings are coated with black oxide (designation suffix L4B) to minimize the risk of smearing or wear, especially during the running-in period.